Nano-particles can be used in cement-based materials to improve mechanical properties, however, their utilization may cause great problems related to cost and human health. This paper investigates the possibility to use commercial grade TiO2 as an additive to mortar with different percentages to realize some of the benefits of TiO2. The research explores the effect of different environments on absorbed water during 7 days curing, mass loss due to water evaporation of samples kept in air and CO2 chamber and resistance to sulfate attack. The results show a reduction in absorbed water as TiO2 increased while the mass loss due to water evaporation increased. No cracks observed of samples fully immersed in 5% concentration sodium sulfate solution.